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Old March 7, 2013, 10:50 PM   #7
James K
Join Date: March 17, 1999
Posts: 24,141
I thought of a ball pen spring but didn't think it would be strong enough. I just opened up a box of assorted springs that cost (IIRC) $5 at Home Depot and there are six spings that might work.

Just for useless info, don't downrate those ball pen springs in terms of durability! I read someplace that they are routinely tested to make sure they will work for at least 100,000 clicks.

Jim K
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